Antimicrobial Bacterial Cellulose-Silver Nanoparticles Composite Membranes

Abstract

Antimicrobial bacterial cellulose-silver nanoparticles composite membranes have been obtained by“in situ”preparation of Ag nanoparticles from hydrolytic decomposition of silver nitrate solution using triethanolamine as reducing and complexing agent. The formation of silver nanoparticles was evidenced by the X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), and absorption in the UV-Visible (350 nm to 600 nm). Thermal and mechanical properties together with swelling behavior for water were considered. TEA concentration was observed to be important in order to obtain only Ag particles and not a mixture of silver oxides. It was also observed to control particle size and amount of silver contents in bacterial cellulose. The composite membranes exhibited strong antimicrobial activity against Gram-negative and Gram-positive bacteria.

Antibacterial activity and the hydrophobicity of cotton coated with hexadecyltrimethoxysilane

“…Peak at wavelength region 429 nm indicates the formation of Ag 0 Nanoparticles. This is consistent with the works of Barud et al [14], Saputra et al [21], and Ibrahim [22]. According to Table 1, a peak at 3280.68 and 3286.68 cm -1 is assigned as vibration-OH group of cellulose (cotton cloth).…”

“…The smaller of the particle size, the greater the antimicrobial properties [10,11]. The material with cellulose fiber and deposited silver nanoparticels exhibited interesting hydrophilicity properties, hence it can be used as a vessel artificial blood, nonallergenik, and can be sterilized without affecting the characteristics of the material [12][13][14].…”

Random laser action from flexible biocellulose-based device

“…23 In the never dried state, BC membranes present relatively high porosity allowing the incorporation or synthesis in situ of silica (SiO 2 ) 25 or metallic NPs. 26 The large potential of BC for applications in biomedicine has been demonstrated as small-diameter blood vessels replacement 27 and as temporary skin substitute in the treatment of chronic wounds, burns, and ulcers. 28 The incorporation of silver (Ag) NPs as antimicrobial body extended the biomedical applications of BC membranes.…”

The Synthesis of Alginate-Capped Silver Nanoparticles under Microwave Irradiation

“…Synthesis of silver nanoparticles by biopolymers such as cellulose [18], starch [19], guar gum [6], gum kondagogu [20], gum olibanum [21], chitosan [22], [9], and alginatechitosan [23] have been reported.…”